Explosive-engine.



. PATENTED MAY 19, 1908. y 11.1). BAIRD-.i .'BXPLOSI'VE ENGINE.

APPLIOATIONPILED 11113.14, 1-907.

2 SHEETS-SHEET 2 narran salaries t t. mvn*\ tra frisia? farci i .ii-tirarla l nl# HARRY D. BAIRI), OF DETROIT, MICHIGAN, ASSIGNGR TO SAINT CLAIR MTUR CG., OF

DETROIT, MICHIGAN, A CGRPORATIGN F MOHIGAN.

EXPLOSIVEnENGINE.

Nanaimo.

specificationl er Letters Patent.

Patentes nay 1e, ieee.'l

Application led February 14, 190'?. Serial. No. 357,322.

To all whom it may concern.'

Be it known that I, HARRY I9. BAIRD, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Explosive Engines, of which the following is a specification, reference being had therein to the accoinpanying drawings.

This invention relates to improvements in internal-combustion engines ofthe base'cornpressiontype in'which the explosive charges are forced into` the cylinder under pressure by the downstroke of the piston, and the mainobject of the invention is to produce aA ,'fii'eatures in the construction, arrangement and'combinationof parts all as hereinafter more fully described and particularly pointed out in the clainis, reference being had to the accompanying drawings, in which Figure l, is a longitudinal vertical section of an engine embodying the invention 5 Fig. 2, a transverse vertical section of the saine; F ig. 3 an end elevation; Fig. 4, a plan view of the ysame with the circuit breaker in sec tion; F ig. 5, a side elevation of the pump detached; and F ig. 6, is a horizontal section through the engine cylinder, on the line -a; of Fig. 2.

1 represents the engine cylinder provided with a water jacket 2, 3 theclosed circular crank casing communicating with 'the lower end of they cylinder and which is divided in the centerof the bearings thereonl for the cra-nk shaft 4 into two parts which are ll-anged and secured together by bolts.

isi the crank on the crank shaft connected to the piston 6 by a connecting' rod 7, and S is a thrust' bearing sleeved on the shaft between the crank and the inner end of the ad- ''jace'i'i'tfbe'aring to take the end thrust of the shaft.

A vertical passage 9 extends upward at eifie'side of the cylinder from the crank caseand communicates at its upper end with through an intake port IO, to conduct the explosive charges to the cylinder, apparatus,

not shown, being provided to supply air and combustible vapor to'said passage. The head of the piston is termed with an upwardly projecting portion or boss Il, the

.vertical side of which opposite the inlet' port forms a detlector to direct the ingoing gas into the upper end oi thel cylinder and. the wall or this vertical side is set inward te ierinl a notch 38 which gives added s )ace between the Wall and the wall oi the cylinder-'to permit the tree inilow of the gas Ji'roin the inlet port. T ie opposite eide adjacent to the ein haust port l2 is ornied with a long slant i3 to give iree egress ier the products et conibustionwhen the exhaust port is opened and to direct said exhaust toward said port. This projecting end or boss is cast integral with the head of the piston and is hollow'so that 'it will cool rapidly and prevent burning out and by projecting upm/'ard from. the cylinder I head into the esplosive chamber, it partially lille said chamber, thus materially increasing the compression therein and at trie saine time gives iree ingress for the charges and egress for the exhaust. Ey locating the spark plug directly over the inlet port, inthe screwn threaded opening la in the side Wall oi the cylinder near its upper end, the incoming charges will be deflected directly over its jecting inner end. and tend to neen it c uan and i'ree from soot, and the "r charges will he insured, as ythe notch" 38, will torina pocket when the piston is the upper" end ci its stroke into which the inner end of the plug will project and as this pocket will contain the richest part ol tliccharge owing to the lact that the inlet port opens directly upper side Aof the laterally ent riding of the hearing and secured in lace bybolts 1T extending through the legs and llangcs to Secure the pump in place and also to hold the parts or" the bearing together. At its lower end the pump cylinder is provided wi th openings to receive pipes i8 leading to the lsource oiC water supply and water jacket 'of the enthe interior of the cylinder above the piston, l gine cylinder, and these pipes are previded -with check valves, not' shown, which'cause the Iwater.y to be drawn from the ,source of supply by the Cpump through. one of said pipes and to be 'scharged through the other pipe. A piston 19 in the pump cylinder extends through a suitable stufling box on its upper end and is lpivotally attached to an ear on a rotatable s eeve 20 carried by a iixed laterally extending arm 21 secured to the eccentric rod 22 of an eccentric 23 on the crankshaft. l The upper end of the eccentric rod isY guided in a sleeve 24 which is provided with an integral laterally extending pin 25 externally screw-threaded to engage an internally screw-threaded boss l2 projecting from the side of the cylinder and the extreme upper end of said rod is reduced and on this reduced rod is secured a contact roll l27 adapted to engage a ball contact 28l carried by a hand lever 29 pivoted to turn upon a bolt 30 screwed into an opening in the engine cylinder. The lever 29 is provided with alaterally extending arm 31 having an opening and in this openin 1s secured an' externally screw-threaded-tu e 32 by means of jamnuts 33 engaging insulating washers 34 interposed between the nuts and the arm. The

' tube is of considerably less diameter than -the diameter of the hole in the arm so that it is thoroughly insulated from said arm by the washers and air space. One end of the tube 'is contracted to forma seat forthe ball contact 28 which is within the tube and said ball .is held against its seat with one side. projectingvfrom the end of the tube, b a coiled spring 35 interposed between the all and a p ug 1n the opposite end .of the tube. One terminal of an electric conductor leading to the spark plug is attached to said tube and the other terminal to the engine, in the usual manner, land the lever 29 is held in the osition to which it is turned on its pivot olts 30 by a spring actuatedpin 36 enga ing a sees of notches 37 in the side ofthe cy 'nder w A very simple andeflicient means forad- .vancing or retarding the spark is thus secured as by moving the handle lever up) or down the contact betweenthe' roll and all Willbe made and broken earlier or later in relatin to the o sition of the piston.

-Having thus y described my invention, what-I claim is`: j Y.

1 The combination with a vertical cylinderh a piston in said cylinder, a crank-shaft an acrank on said shaft connected to said` piston, of .an eccentric on the crank-shaft, ,an upwardly extending eccentric rod, apivotally .supported guide in Awhich the upper end of the rod slides and upon which it rocks, a' contact adapted tobeintermittentl'y engaged by the up er end of said rod, and a pivoted lever tow 'ch the contactJ is secured adapted to be turned to move the'contact in relation to" the upper end of the rod.

2.. The combination with; a. "vertical cylinder, a piston in said cylindelya crankshaft and a crank on said shaft connected to said piston; of an eccentric on the crank-shaft, an upwardl .extending eccentriclrod, a guide for-said ro ivoted to turn upon la horizon tal ivot an throu hwhich the rod is free to s ide, a contact a apted to be engaged by the upper end of said rod, and a lever pivotally attachedv to the cylinder, adapted to carry the contact and to beturned to change the relation of the contact to the rod. 3. The combination with a vertical c` linder, a piston in said cylinder, a crank-s aft, and a crank on said' shaft connected to said piston; of an eccentric on the crank-shaft, an upwardly extending eccentric rod, means secured to the cylinder for guiding the rod in its longitudinal movement and pivotally supporting the same to turn upon a horizonta pivot,l a lever pivotally supported by the cylinder to turn upon a horizontal pivot, a

contact carried by said lever, means for se curing said contact to the lever and insulating the same therefrom, and a contact roll 'onli' the uppler end of the eccentric rod.

4. e combinationwith a vertical c linder, a piston in said cylinder, a crank-s aft,

and a crankon said shaft connected to the piston; of an eccentric on the crank-shaft, an upwardly extendin eccentric rod, an internallyscrew-threade bossontliecylinder-,a sleeve on the eccentric rod having 'a laterally extending screw-threaded pin to engage said boss, a contact roll on the upper end of the rod', a lever pivoted to the side of the c linder' upon a horizonal pivot, a tube carried y said lever and insulated therefrom, a contact ball in said tube, a s ring in the tube to engage the ball and hol the same to its seat at one end of the tube in`a position to be engagedby the contact roll, and means' for holding the llever in the' position to which it is turned;- 5. The combination with a vertical cylinder, a piston on said cylinder, a crank-shaft and a crank on said shaft'connected tosaid piston; of an eccentric on the shaft, an eccentric rod, means for guiding and supporting the up er end of said ro a lever pivotally attachedp to the cylinder by ahorizontally extending bolt, an arm on said lever having an openin a tube of lesser diameter thansaid opening aving an internal ball seat at one end thereof, a contact ball in said tube,

a spring in said tube engaging the ball to hold the same in contact with said seat, binding-v nuts on the tube at each side of the arm, 1n-

sulating washers between the nuts and arm,

and a spring actuated pin on the lever enga inv a series of notches in the side of the c y 1n er. t

6. The combination witha cylinder, an air tlght. crank case provided with laterally extending bearings and made in halves provided with lianges, anda .crank-shaft in said bearpivotally ings;v of ail iston in said cylinder, a Water jacket fdlt ecylinder, a pump cylinder cona piston'. in the pump cylinder,l an eccentrlc 'on the crankfshaft, en eccentric rod, e guide sleeve for the upper end of seid rod provided with a laterally extending pin, e boss on the engine cylinder to receive seid pin, a laterally extending arm on the eccentric rod, a sleeve -on seidarm hav-ing en eer pivotally attached to the urn piston, e Contact roll on the upper en of t e rod, a lever pivotelly attached tothe engine cylinder, a contact carried by said lever to which one terminal of an electric circuit for the spark lug is attached, and means for holding said) lever in its adjusted position.

In testimony whereof I affix my signature in presence of two Witnesses.

HARRY D. BAIRD. Vitnesses:

HARRY M. LroK, OTTO F. BARTHEL. 

